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Second Semester Practice
Test Description: Review for Semester test
Instructions: Answer all questions to get your test result.
1) You often see lamps placed above prepared foods in restaurants. How do these lamps help keep the food warm?
A
refraction
B
conduction
C
radiation
D
convection
2) Feathers help a bird stay warm because
A
they protect the bird because it doesn't have a layer of fat.
B
they easily transfer heat
C
they trap heat in spaces between the feathers
D
they prevent the snow from melting so quickly.
3) Which color absorbs the greatest amount of light that strikes it?
A
black
B
red
C
yellow
D
white
4) In a glass of lemonade, what will happen to the particles in the ice cubes as heat flows from the lemonade to the ice cubes?
A
The particles will move faster.
B
The particles will move slower and then faster.
C
The particles will move slower.
D
The particles will move at the same speed.
5) Why is a metal spoon a better heat conductor than a wooden spoon?
A
The electrons in the metal spoon are harder to move than the electrons in the wooden spoon.
B
The metal spoon is made of a harder, more dense material than the wooden spoon.
C
The electrons in the metal spoon move more easily than the electrons in the wooden spoon do.
D
The metal spoon has a shinier luster and smoother texture than the wooden spoon has.
6) In a glass of water, a straw looks bent and changes shape. How is the light behaving?
A
Light is being reversed.
B
Light is being refracted.
C
Light is being reflected.
D
Light is being absorbed.
7) Which part of the electromagnetic spectrum can damage skin cells?
A
radio rays
B
ultraviolet rays
C
gamma rays
D
visible light rays
8) When heat transfers between two objects by conduction
A
the particles in the objects change location.
B
the two objects must have space between them.
C
the two objects must be touching.
D
one object must be a liquid.
9) Which of the following is the best description of how matter moves in a compressional wave?
A
It moves up and down in the opposite direction of the wave.
B
It moves back and forth in the opposite direction as the wave.
C
It moves back and forth in the same direction as the wave.
D
It moves up and down in the same direction as the wave.
10) What type of heat transfer causes winds?
A
conduction
B
radiation
C
convection
D
transversal
11) Which statement is true about heat movement?
A
Heat always moves from a warmer substance to a cooler one.
B
Heat usually moves from a warmer substance to a cooler one but can also move from a cooler substance to a warmer one.
C
Heat moves from substances with lower kinetic energy to substances with higher kinetic energy.
D
Heat moves between two substances only when they are touching.
12) What is thermal energy?
A
the kinetic energy minus the potential energy in a substance
B
the amount of motion in a substance
C
the temperature of a substance
D
the total amount of potential and kinetic energy in a substance
13) Which sample of water has the greatest amount of thermal energy?
A
1 cup of water at 72 degrees C
B
1/2 cup of water at 72 degrees C
C
1/2 cup of water at 85 degrees C
D
1 cup of water at 85 degrees C
14) What kind of energy is stored in the gas pumps where your parents fill their vehicles with fuel?
A
mechanical energy
B
kinetic energy
C
chemical energy
D
thermal energy
15) Kinetic energy and potential energy are both types of
A
solar energy.
B
chemical energy.
C
mechanical energy.
D
electrical energy.
16) When you drop a ball to the floor, what happens to the energy in the ball?
A
The energy stays in the ball as it drops.
B
The energy is gained by the air and the floor.
C
Energy is made and goes to the air and the floor.
D
Most of the energy is destroyed.
17) Energy stored in the bonds between atoms is
A
electrical energy.
B
thermal energy.
C
kinetic energy.
D
chemical energy.
18) What does the atomic number tell us about an element?
A
How many electron clouds it has
B
The strength of the element.
C
How many protons it has in its nucleus.
D
how many neutrons it has
19) The chemical formula for water is H2O. This information tells you that water is
A
a solution.
B
a compound.
C
a mixture.
D
an element.
20) In a lab, a student observes a sample of an element. It is brittle and a poor conductor of heat. It cannot be hammered into sheets. Which type of element is the student most likely observing?
A
metalloid
B
nonmetal
C
aurum
D
metal
*select an answer for all questions
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